CN211114495U

CN211114495U - Steel construction stair

Info

Publication number: CN211114495U
Application number: CN201920929268.1U
Authority: CN
Inventors: 张伟明; 陆春林
Original assignee: Shanghai Shengjian Environmental System Technology Co ltd
Current assignee: Shanghai Shengjian Environmental System Technology Co ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-07-28
Anticipated expiration: 2029-06-19

Abstract

The utility model discloses a steel construction stair, include: two parallel arrangement's girder and install the grid plate between the girder, the both ends of grid plate are passed through the bolt and are connected with two girders respectively. Two girders generally set up to equal length, also can set up to different length, specifically can set up according to service environment, wherein, the girder can splice for the multistage and form, also can be for an organic whole have the roof beam of certain length, in order to guarantee intensity, when adopting the multistage roof beam to splice into the girder, can adopt welded mode, for the transport convenience, can weld at the scene, grid plate and beam slab also can assemble at the scene, because pass through bolted connection between grid plate and the girder, needn't weld again, can effectively reduce the weldment work volume between steel structure stair and the grid plate, this steel structure stair simple structure, the installation is swift and be convenient for transport.

Description

Steel construction stair

Technical Field

The utility model relates to a stair installation technical field, more specifically say, relate to a steel construction stair.

Background

At present, the steel structure stair is widely used in the fields of environmental protection and constructional engineering due to simple structure and attractive appearance. The existing steel structure stairs have two installation methods, one is that the ladder beam and the step are directly welded into a whole in a factory, and then the whole is transported to the site for installation; the other type is that the ladder beam, the step and the platform are manufactured separately in a factory, parts are transported to the site and then welded and assembled on the construction site, the two types of stairs are both welded, and the problem of large welding processing amount exists.

In summary, how to reduce the manual welding workload of the steel structure stair is a problem to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a steel construction stair, this stair reducible manual welding's work load when the equipment.

In order to achieve the above object, the present invention provides the following technical solutions:

a steel-structure staircase, comprising: the grating plate comprises two main beams arranged in parallel and a grating plate arranged between the main beams, wherein two ends of the grating plate are respectively connected with the main beams through bolts.

Preferably, the girder includes a landing beam and a stair tread beam, the end of the landing beam and the end of the stair tread beam are connected, and the landing beam and the stair tread beam have an included angle greater than 90 degrees therebetween.

Preferably, the grid plate includes a landing step grid and a stair step grid, the landing step grid is installed between the landing beams, and the stair step grid is installed between the stair step beams.

Preferably, the both ends of stair step grid are equipped with first mounting hole, the both ends of platform step grid are equipped with the second mounting hole, be equipped with stair step grid mounting hole on the beam wall of stair step roof beam, be equipped with the platform step grid mounting hole on the beam wall of platform roof beam, first mounting hole with install first bolt in the stair step grid mounting hole, the second mounting hole with install the second bolt in the platform step grid mounting hole.

Preferably, the platform step grid mounting holes are equidistantly distributed on the beam wall of the platform beam.

Preferably, the stair step grids are arranged between the two stair step beams in an equidistant and parallel mode.

Preferably, all the platform step grids arranged on the platform beam are positioned on the same plane and are sequentially attached.

The utility model provides a pair of steel construction stair, include: two parallel arrangement's girder and install the grid plate between the girder, the both ends of grid plate are passed through the bolt and are connected with two girders respectively. Two girders generally set up to equal length, also can set up to different length, specifically can set up according to service environment, wherein, the girder can be spliced by the multistage roof beam and form, also can be for an organic whole have the roof beam of certain length, in order to guarantee intensity, when adopting the multistage roof beam to splice into the girder, can adopt welded mode, for the transport convenience, can weld at the scene, grid plate and beam slab also can assemble at the scene, because pass through bolted connection between grid plate and the girder, needn't weld again, can effectively reduce the weldment work volume between steel structure stair and the grid plate, this steel structure stair simple structure, the installation is swift and be convenient for the transportation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic view of a steel structure staircase provided by the present invention;

fig. 2 is a side view of the main beam provided by the present invention;

FIG. 3 is a schematic view of the stair step grating provided by the present invention

Fig. 4 is a schematic view of the landing step grid provided by the present invention.

In FIGS. 1-4:

1-stair step beam, 2-platform beam, 3-stair step grid, 4-platform step grid, 5-platform step grid mounting hole, 6-stair step grid mounting hole, 7-first mounting hole and 8-second mounting hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The core of the utility model is to provide a steel construction stair, this stair reducible manual welding's work load when the equipment.

Referring to fig. 1 to 4, fig. 1 is a schematic view of a steel structure staircase provided by the present invention; fig. 2 is a side view of the main beam provided by the present invention; fig. 3 is a schematic view of the stair step grating provided by the present invention fig. 4 is a schematic view of the platform step grating provided by the present invention.

A steel-structure staircase, comprising: two parallel arrangement's girder and install the grid plate between the girder, the both ends and the girder of grid plate pass through bolted connection respectively.

It should be noted that the main beams are generally strip-shaped plate bodies, the plate surfaces of the two main beams are opposite, a plurality of grid plates are arranged between the two opposite plate surfaces, and because the steel structure stair has the characteristic of a stair, the lower part of the steel structure stair is generally arranged on the ground or the floor or other planes in a structure extending from low to high, the bottom of the two main beams is arranged horizontally and matched with the ground or the floor or other planes, and can also be arranged at other angles, and the steel structure stair can be arranged according to practical application environments.

Because the girder is extended to the height by low, so, steel construction stair when placing on the plane, the length direction and the plane direction of two girders can have certain contained angle, and specific contained angle can set up according to the practical application environment, and when the surrounding space that sets up is great, can be with the mild of two girder settings a little, for example when steel construction stair place on the plane, the girder should not set up too big with the contained angle on ground, too big probably causes the climbing difficulty.

The girder adopts the steel to cast, certain intensity has, can regard as a supporting beam who supports the grid board, be used for fixed grid board, the grid board is platelike, can parallel arrangement each other between two girders, of course, also can be equipped with certain angle between the grid board when necessary, the grid board can adopt the rectangle flat board, when the problem of the security of grid board is considered, the thickness of grid board can suitably be thickened, nevertheless also need not set up too thick, make on its basis that can not influence the security problem, proper weight reduction, be convenient for carry.

Two girders generally set up to equal length, also can set up to different length, specifically can set up according to service environment, wherein, the girder can splice for the multistage and form, also can be for an organic whole have the roof beam of certain length, in order to guarantee intensity, when adopting the multistage roof beam to splice into the girder, can adopt welded mode, for the transport convenience, can weld at the scene, grid plate and beam slab also can assemble at the scene, because pass through bolted connection between grid plate and the girder, needn't weld again, can effectively reduce the weldment work volume between steel structure stair and the grid plate, this steel structure stair simple structure, the installation is swift and be convenient for transport.

On the basis of the above embodiment, the main beam comprises a platform beam 2 and a stair step beam 1, the end part of the platform beam 2 is connected with the end part of the stair step beam 1, and an included angle larger than 90 degrees is formed between the platform beam 2 and the stair step beam 1.

It should be noted that this steel construction stair are applicable to the straight line and climb or down, also can be applicable to the broken line and climb or down, set up platform roof beam 2 at the tip of one section stair beam of marking time 1 promptly, and platform roof beam 2 is horizontal connection in stair beam of marking time 1, and stair beam of marking time 1 has certain contained angle with the horizontal direction, and specific contained angle can set up according to practical application environment.

The included angle of more than 90 degrees, which is set between the platform beam 2 and the stair step beam 1 in this embodiment, can be set according to the climbing or descending condition of a person, for example, when the angle is set to 89 degrees, although climbing or descending can be performed, climbing or descending is difficult, in most cases, an auxiliary device or a hand is required to perform climbing or descending, and considering the safety of a steel structure stair, the end portion of the platform beam 2 can be welded to the end portion of the stair step beam 1.

Preferably, the grid panels comprise landing step grids 4 mounted between the landing beams 2 and stair step grids 3 mounted between the stair step beams 1. The platform grid 4 of marking time is the grid that the face is parallel with platform roof beam 2, and the platform grid 4 of marking time can be become by one or more than two, considers the problem of security, generally sets up to more than two, when setting up one, and this platform grid 4 of marking time's width needs to satisfy the stability that the personnel trampled when.

Generally, a landing step grating 4 is arranged between two landing beams 2 on one side of the joint of the landing beams 2 and the stair step beams 1, the landing step grating 4 is the closest one to the stair step grating 3 arranged on the other side of the joint of the landing beams 2 and the stair step beams 1, and the distance between the landing step grating 4 and the stair step grating 3 closest to the landing step grating 4 can be set to be any distance between the stair step gratings 3 arranged between the stair step beams 1.

On the basis of above-mentioned embodiment, the both ends of stair marking grid 3 are equipped with first mounting hole 7, and the both ends of platform marking grid 4 are equipped with second mounting hole 8, are equipped with stair marking grid mounting hole 6 on the beam wall of stair marking beam 1, are equipped with platform marking grid mounting hole 5 on the beam wall of platform beam 2, install first bolt in first mounting hole 7 and the stair marking grid mounting hole 6, install the second bolt in second mounting hole 8 and the platform marking grid mounting hole 5.

It should be noted that, in order to match the shape of the bolt, the stair step grid mounting hole 6 and the platform step grid mounting hole 5 are both set as circular holes, the size of the holes can be set according to the applied bolt, the first mounting hole 7 is set according to the characteristic of the stair step grid 3, and the second mounting hole 8 is set according to the characteristic of the platform step grid 4.

The above-mentioned characteristic of stair step grid 3 that indicates is the shape of stair step grid 3, and the characteristic of platform step grid 4 refers to the shape of platform step grid 4, and when stair step grid 3 and/or platform step grid 4 were the slabby that has certain thickness, can set up first mounting hole 7 and/or second mounting hole 8 into the screw hole that has the internal thread, first screw hole and second screw hole promptly, first screw hole and first bolt be connected in coordination, and second screw hole and second bolt be connected in coordination. When stair step grid 3 and/or platform step grid 4 are platelike, and both ends have bellied connecting portion, can set up first bolt hole and/or second bolt hole into the through-hole, and set up on connecting portion, the through-hole on the connecting portion at both ends aligns with the round hole, later with the bolt pass through-hole and round hole after, the reuse nut is with the bolt fastening.

This embodiment is equipped with first mounting hole 7 at the both ends of stair marking grid 3, and the both ends of platform marking grid 4 are equipped with second mounting hole 8, are equipped with stair marking grid mounting hole 6 on the beam wall of stair marking beam 1, are equipped with platform marking grid mounting hole 5 on the beam wall of platform roof beam 2, and the processing method is simple to first bolt and second bolt are the bolt, convenient for material selection.

Considering the safety of the steel structure stair, the platform step grating mounting holes 5 are equidistantly distributed on the beam wall of the platform beam 2. By adopting the distribution mode, the platform stepping grids 4 arranged between the two platform beams 2 can be uniformly distributed on the platform beams 2, so that the platform beams 2 are uniformly stressed, and the stability of the platform beams 2 is ensured.

Also considering the safety of the steel structure stair, the stair step grids 3 are arranged between the two stair step beams 1 in an equidistant and parallel manner. The stair step grids 3 are equidistantly distributed between the two stair step beams 1, so that a person can climb or descend by adopting the same step pitch when climbing or descending, and if the stair step grids 3 with different distances are adopted, the person can adopt different step pitches when climbing or descending, and danger can be caused.

Preferably, all the platform step grids 4 arranged on the platform beam 2 are in the same plane and are sequentially attached. The platform that sets up mutual laminating is marked time grid 4 and can is increased trampling the plane area of whole platform, makes the platform of installing between two platform roof beams 2 and marks time grid 4 and step on the plane area maximize to make the platform mark time and can not appear the gap between the grid 4, further strengthened the security of platform mark time grid 4.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

It is right above the utility model provides a steel construction stair have carried out the detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. A steel structure stair, characterized by, includes: the grating plate is arranged between the two main beams in parallel, and two ends of the grating plate are respectively connected with the main beams through bolts;

the main beam comprises a platform beam (2) and a stair step beam (1), the end part of the platform beam (2) is connected with the end part of the stair step beam (1), and an included angle larger than 90 degrees is formed between the platform beam (2) and the stair step beam (1);

the grating plates comprise platform stepping gratings (4) and stair stepping gratings (3), the platform stepping gratings (4) are installed between the platform beams (2), and the stair stepping gratings (3) are installed between the stair stepping beams (1);

the both ends of stair step grid (3) are equipped with first mounting hole (7), the both ends of platform step grid (4) are equipped with second mounting hole (8), be equipped with stair step grid mounting hole (6) on the beam wall of stair step roof beam (1), be equipped with platform step grid mounting hole (5) on the beam wall of platform roof beam (2), first mounting hole (7) with install first bolt in stair step grid mounting hole (6), second mounting hole (8) with install the second bolt in platform step grid mounting hole (5).

2. The steel structural staircase according to claim 1, characterised in that the landing tread grid mounting holes (5) are distributed equidistantly on the beam walls of the landing beams (2).

3. The steel structural staircase according to claim 1, characterised in that said stair tread grids (3) are arranged equidistant and parallel between two of said stair tread beams (1).

4. The steel structural staircase according to any of the claims 1 to 3, characterised in that all the landing step grids (4) arranged on the landing beams (2) are in the same plane and are attached in sequence.